1. Advisory Committee on Immunization Practices (ACIP). Guidelines for Vaccinating Pregnant Women October 1998. Updated May 2007.
2. The American College of Obstetricians and Gynecologists (ACOG). ACOG Technical Bulletin Number 160. October 1991.
3. American College of Physicians Task Force on Adult Immunization, Infectious Diseases Society of America. Guide for Adult Immunization. 3rd ed. Philadelphia: American College of Physicians; 1994.
4. General recommendations on immunization recommendations of the advisory committee on immunization practices (ACIP) and the American academy of family physicians (AAFP);Atkinson;MMWR Recomm Rep,2002
5. 2007 Physicians’ Desk Reference;Thomson Healthcare,2006